In this paper we revisit the third harmonic generation from a femtosecond laser filament in air and its significant enhancement (~ 100 times) with a intercepting pump pulse, which has been reported very recently. The enhanced third harmonic is studied as a function of the pulse polarization, time delay between the pump and signal pulses, laser pulse energy, etc. We provide an explanation for th...

At present, power electronics-based technologies are widely penetrating the power systems in an effort towards “smart-oriented” operational systems. Voltage-sourced converters (VSCs) are such power electronics-based technologies that currently seem rather to preponderate in many promising applications including FACTs, HVDC grids, DGs and VSDs. VSCs are found in a plethora of structures ranging ...

Abstract In this paper, there is a discussion about different modulation schemes for dc-to-ac ZSC, also named Z-source inverter (ZSI), triggering the main switches of three-phase legs or poles an inverter. A prototype 8.5-kilowatt wind turbine with 5.8-kilowatt Permanent Magnet Synchronous Generator (PMSG) system employed voltage-controlled ZSI implemented in paper. For voltage control load sid...